本位的-Arylative开环聚合的2-溴-8-芳基-8- ħ -茚并[2,1-b]噻吩-8-醇单体进行到中号Ñ高达9千克摩尔-1与单体二芳基的转化侧基连接到共轭芳基苯基侧链(2-苯甲酰基苯基或2-(4-己基苯甲酰基)苯基),这会影响所得聚噻吩的光学和电子性质。发现聚(3-(2-(4-(己基苯甲酰基)苯基)噻吩)比聚(3-己基噻吩)具有更低的前沿轨道能级(HOMO / LUMO = -5.9 / -4.0 eV)芳基酮侧链的能力。电子迁移率(约2×10 -3 cm 2 V -1 s -1)的聚(3-(2-(4-己基苯甲酰基)苯基)噻吩)被认为比空穴迁移率(约8×10 -6 cm 2 V -1 s -1)高得多,这表明此类聚合物是n型有机半导体的候选人。密度泛函理论计算表明,由侧链空间相互作用引起的主链畸变可能是影响电荷迁移率的关键因素。
photocatalytic aerobicoxidative lactonization of arene C(sp2)–H bonds proceeds in the presence of 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) and tert-butyl nitrite (TBN). Under the optimized conditions, a range of 2-arylbenzoic acids is converted into the corresponding benzocoumarin derivatives in moderate to excellent yields. This method is characterized by its atom economy, mild reaction conditions, the
Structural modulation of internal charge transfer in small molecular donors for organic solar cells
作者:Antoine Leliège、Charles-Henri Le Régent、Magali Allain、Philippe Blanchard、Jean Roncali
DOI:10.1039/c2cc33921h
日期:——
Donor–acceptor molecules with small chain extension have been synthesized and used as active material in organic solar cells. The effect of fusion of a phenyl group on the end dicyanovinylene acceptor is discussed.
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‐Arylative Ring‐Opening Polymerization as a Route to Electron‐Deficient Conjugated Polymers
作者:Feng‐Yang Shih、Deokkyu Choi、Qin Wu、Chang‐Yong Nam、Robert B. Grubbs
DOI:10.1002/anie.201809610
日期:2019.1.2
ipso‐Arylativering‐openingpolymerization of 2‐bromo‐8‐aryl‐8H‐indeno[2,1‐b]thiophen‐8‐ol monomers proceeds to Mn up to 9 kg mol−1 with conversion of the monomer diarylcarbinol groups to pendent conjugated aroylphenyl side chains (2‐benzoylphenyl or 2‐(4‐hexylbenzoyl)phenyl), which influence the optical and electronic properties of the resulting polythiophenes. Poly(3‐(2‐(4‐hexylbenzoyl)phenyl)thiophene)
本位的-Arylative开环聚合的2-溴-8-芳基-8- ħ -茚并[2,1-b]噻吩-8-醇单体进行到中号Ñ高达9千克摩尔-1与单体二芳基的转化侧基连接到共轭芳基苯基侧链(2-苯甲酰基苯基或2-(4-己基苯甲酰基)苯基),这会影响所得聚噻吩的光学和电子性质。发现聚(3-(2-(4-(己基苯甲酰基)苯基)噻吩)比聚(3-己基噻吩)具有更低的前沿轨道能级(HOMO / LUMO = -5.9 / -4.0 eV)芳基酮侧链的能力。电子迁移率(约2×10 -3 cm 2 V -1 s -1)的聚(3-(2-(4-己基苯甲酰基)苯基)噻吩)被认为比空穴迁移率(约8×10 -6 cm 2 V -1 s -1)高得多,这表明此类聚合物是n型有机半导体的候选人。密度泛函理论计算表明,由侧链空间相互作用引起的主链畸变可能是影响电荷迁移率的关键因素。
AgONO-Assisted Direct CH Arylation of Heteroarenes with Anilines
作者:Saravanan Gowrisankar、Jayasree Seayad
DOI:10.1002/chem.201403640
日期:2014.9.26
A novel copper‐catalyzed CH arylation of heteroarenes with anilines by an in situ diazonium reaction is established by using silver nitrite (AgONO) as an unconventional nitrosating reagent under acid‐free conditions. It provides a complementary approach for the CH arylation of electron‐richheteroarenes with aromatic amines affording a variety of heterobiaryls in moderate to good yields.